Recycling of Cass County I-80 Asphalt Concrete, Progress Report, HR-1011, 1977

(1977) Recycling of Cass County I-80 Asphalt Concrete, Progress Report, HR-1011, 1977. Transportation, Department of


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Approximately 40,000 tons of slightly damaged asphalt concrete has been removed from Interstate 80 in Cass and stockpiled. Laboratory tests had indicated that this material had considerable value when upgraded with new aggregate and asphalt cement. This report documents the procedures used and results obtained on an experimental recycling project. It was demonstrated that present drum mixing-recycling equipment and procedures can be used to utilize this material with satisfactory results. Laboratory analyses of material components and mixtures were performed; these analyses indicate mixture can be produced that is uniform, stable, and very closely resembles mixture produced with all new material. Follow~up evaluations will be made to determine the effects of traffic and environment. Preliminary data indicate that plans should be made to incorporate the stockpiled material in projects near the stockpile site.

Item Type: Departmental Report
Keywords: Aggregates, Asphalt concrete pavements, Cracking of asphalt concrete pavements, Laboratory tests, Mixers, Recycled materials
Subjects: Transportation > Pavements
Transportation > Pavements > Asphalt
Transportation > Roads and highways
Transportation > Research
Transportation > Maintenance and preservation
ID Code: 17295
Deposited By: Iowa DOT Library
Deposited On: 30 Jun 2014 12:37
Last Modified: 29 Jan 2015 21:10